Other Intangible Assets (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Other Intangible Assets
Aggregate pre-tax amortization expense			$ 307	$ 294
Continuing Operations [Member]
Other Intangible Assets
Aggregate pre-tax amortization expense	$ 50	$ 48	305	$ 292
Pre-tax amortization expense, 2015	51		51
Pre-tax amortization expense, 2016	352		352
Pre-tax amortization expense, 2017	217		217
Pre-tax amortization expense, 2018	218		218
Pre-tax amortization expense, 2019	205		205
Pre-tax amortization expense, 2020	$ 188		$ 188